第1題： Computer Network (1)(CND) refers to the strategies and efforts undertaken to secure data and information within a computer network.It involves implementing security measures and conducting security awareness and training programs to protect against potential(2).Many different cyber plagiarize is security solutions can contribute to your organization's CND DOG including(3),VPNs,access control systems,and more. CND involves protection, detection, and reaction.(4)provides a foundation for the program. It is the base of operation, from the base,and detected incidents,the(5)includes taking immediate steps to stop an incident in progress.
（1）A．Description
B．Defection
C．Detection
D．Defense
（2）A．Actions
B．Access
C．Operations
D．Attacks
（3）A．Firewalls
B．Gateways
C．Routers
D．Switches
（4）A．Defense
B．Protection
C．Reaction
D．Detection
（5）A．Attack
B．Protection
C．Detection
D．Reaction
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第2題：

某廣播型網(wǎng)絡(luò)的拓?fù)淙缦聢D所示，所有路由器均運(yùn)行OSPF路由協(xié)議，R1和R2的接口優(yōu)先級(jí)為0，R3的接口優(yōu)先級(jí)為100、R4的接口優(yōu)先級(jí)為101，則路由器()會(huì)被選舉為DR路由器，R1和R2的OSPF鄰居狀態(tài)為()。

（6）A．R2
B．R3
C．R4
D．R1
（7）A．2-Way
B．Full
C．Init
D．Exstart
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第4題： IPv4地址10.10.216.18/20的網(wǎng)絡(luò)地址是()。
A．10.10.216.0
B．10.10.210.0
C．10.10.210.32
D．10.10.208.0
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第5題： 把一部分磁盤空間充當(dāng)內(nèi)存使用，避免執(zhí)行的程序很大或很多導(dǎo)致內(nèi)存消耗殆盡，該技術(shù)被稱為()。
A．虛擬內(nèi)存
B．動(dòng)態(tài)存儲(chǔ)
C．分級(jí)存儲(chǔ)
D．高速緩存
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第6題： RSA加密算法的安全性依賴于()問題的困難性。
A．大整數(shù)分解
B．子集合
C．合數(shù)剩余判定
D．離散對(duì)數(shù)
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